Management Agreements and Leases - Marriott No. 234 (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) hotel	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Management Agreements and Leases [Line Items]
Security deposit balance	$ 116,448		$ 132,816
Capital improvements from leased facilities, funded	$ 11,738	$ 26,483
Hotel
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	327
Marriott No. 234 agreement | Hotel
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	68
Operating agreement annual rent and return	$ 108,160
Realized returns and rents	26,893	26,710
Security deposits replenished and increased	64,700
Replenishment (utilization) of security deposit	2,113
Security deposit balance	$ 30,598
Guaranty payments threshold as percentage of minimum returns	90.00%
Guarantee provided to the entity, remaining amount	$ 30,672
Capital improvements from leased facilities, funded	9,000	3,680
Increase (decrease) in annual minimum returns and rents	$ 810	$ 331